1910] The Ottawa Naturalist. 121 



Aphalara calthcs Linn. May 10th. 

 Aphalara marginata Harris. June 7th. 

 Psylla carpina Fitch. On ironwood, August 25th. 

 The Leaders of the Entomological Branch would gladly- 

 welcome to the meetings of the Branch any of the members of 

 the Club who are interested in any way in insect life. The subject 

 is extremely fascinating and anyone who cares to take up the 

 study of insects will find a very wide field for investigation. As 

 there is so much yet to be learned about almost every kind of 

 insect, any careful observation on the habits of these creatures 

 is of value. 



W. H. Harrington, 

 Arthur Gibson, 

 C. H. Young, 

 J. W. Baldwin. 



Leaders. 



NOTES ON THE FLORA OF THE NEREPIS MARSH, 



NEW BRUNSWICK. 



By a. B. Klugh, Queen's University, Kingston. 



At Westfield, New Brunswick, w^here the Nerepis River 

 empties into the St. John River, there is an extensive marsh the 

 flora of which is rich enough to be worth recording. 



On August 12th, 13th, 14th and 15th, 1910. I explored this 

 marsh in a canoe, and found that most of the upstanding vegeta- 

 tion in the centre consisted oiScirpus fluviatilis, Scirpus validus, 

 and Zizania palustris. I finally selected a portion of the west 

 shore as a favourable place to make an ecological survey. 



There is not a sufficient depth of water, except in the narrow 

 channel, to preclude the development of Helophytes (marsh- 

 plants) and consequently the Hydrophytes (aquatics) are found 

 between and among the Helophytes, and no clear line of demarca- 

 tion exists between these two ecological groups. But a zoned 

 distribution is observable depending upon the depth of the 

 water, and it will be noticed that the outer zone, where the 

 water is from 8 inches to 3 feet in depth, is composed mostly of 

 the Limnaea formation of Hydrophytes. The following plants 

 occur in this zone: 



Poiamogeton heterophylhis. Abundant. 



Potmnogeton perjoliatus. Common. 



Poiamogeton peciinatus . Common. 



Myriophyllum alterniflorum. Common. 



Vallisneria spiralis. Common. 



NymphcBa advena. Abundant. 



Castalia odorata. Frequent. 



